Final answer:
A guideline in blunt cutting is used to maintain consistency and create a gradual increase in length. The traveling guideline moves as the cut progresses, allowing for a smooth transition in length throughout the hair.
Step-by-step explanation:
In the context of hairdressing, a guideline is a reference point created to ensure consistency in the length of the hair being cut. In blunt cutting, a technique often used to create a clean, even edge, the guideline is crucial to achieve a gradual increase in length. When working with blunt cuts, the hairstylist typically cuts the hair at a zero elevation — meaning no lift — which lays the groundwork for a strong foundation without any layers.
For a gradual increase in length, it is common to use a traveling guideline, where the guideline moves as the cut progresses. This technique allows for each subsequent cut to be slightly longer than the previous one, producing a smooth, subtle increase in length towards the ends of the hair. This can be contrasted with a stationary guideline, where all the sections are brought back to a single starting point, often used to create layers.
To ensure precision in blunt cuts, hairdressers may employ techniques such as scoring on stiff paper, drawing a line and pressing hard with a ballpoint to create an impactful template to follow. This meticulous attention to detail allows for a consistent, evenly distributed length increase, ensuring a polished finish.